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In lugnet.trains, Rob Hendrix wrote:
Hi Rob,
additinally to your theory there is another problem with the wheelsets: they are
partly moulded wrong, as you easiely can recognise in this picture
Jake has told us long ago this was a
mistake by a third-party-manufacturer.
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IMHO, the problem lies in this theory:
- The axles are made of metal.
- Metal is harder than plastic.
- When putting metal in direct contact with plastic, the plastic will wear.
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I agree.
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- Check the spot where the point of the metal axle meets the plastic “hole”
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Especially for the grey ones, where the frame is evidently thicker.
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Which leads me to some questions of my own:
- Why do the gray ones erode when the black ones do not (as fast)?
- Is gray ABS softer than black ABS?
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I would say: YES. Maybe a change of material has caused this (we have heard
about the use of cheaper ABS types a few times at 1000steine - employees of
BAYER (producer of the ABS raw material) told this.)
On the other hand this could be cause by other moulding temperatures and process
steering as well. I am no expert for this topic.
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- is there a new mold that is the problem?
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Yes: at least Jake told so.
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- Can I trade my gray wheelsets in for ones tht work (assuming the problem
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You can, but most people seem to get only defectives again.
So better do a modification as suggested
by Mark here.
my Homepage:
P.s.: This topic is so old
now.... A search for wheel set under the lugnet.lego.direct will lead you to
lots of questions and a few answers.
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Message is in Reply To:
 | | Re: Question about the new trains
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| IMHO, the problem lies in this theory: * The axles are made of metal. * Metal is harder than plastic. * When putting metal in direct contact with plastic, the plastic will wear. * Check the spot where the point of the metal axle meets the plastic (...) (21 years ago, 4-Aug-03, to lugnet.trains)
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